import axios from 'axios'
import { MessageBox, Message } from 'element-ui'
import store from '@/store'
import { getToken } from '@/utils/auth'
import qs from 'qs'
import host from '@/settings'

// create an axios instance
const service = axios.create({
  baseURL: host.host, // url = base url + request url
  // baseURL: 'http://192.160.0.80',
  // withCredentials: true, // send cookies when cross-domain requests
  timeout: 5000 // request timeout
})

// request interceptor
service.interceptors.request.use(
  config => {
    // do something before request is sent

    // if (store.getters.token) {
    //   // let each request carry token
    //   // ['X-Token'] is a custom headers key
    //   // please modify it according to the actual situation
    //   config.headers['X-Token'] = getToken()
    // }
    return config
  },
  error => {
    // do something with request error
    console.log(error) // for debug
    return Promise.reject(error)
  }
)

// response interceptor
service.interceptors.response.use(
  /**
   * If you want to get http information such as headers or status
   * Please return  response => response
   */

  /**
   * Determine the request status by custom code
   * Here is just an example
   * You can also judge the status by HTTP Status Code
   */
  response => {
    const res = response.data

    // if the custom code is not 20000, it is judged as an error.
    // if (res.code !== 20000) {
    //   Message({
    //     message: res.message || 'Error',
    //     type: 'error',
    //     duration: 5 * 1000
    //   })
    //
    //   // 50008: Illegal token; 50012: Other clients logged in; 50014: Token expired;
    //   if (res.code === 50008 || res.code === 50012 || res.code === 50014) {
    //     // to re-login
    //     MessageBox.confirm('You have been logged out, you can cancel to stay on this page, or log in again', 'Confirm logout', {
    //       confirmButtonText: 'Re-Login',
    //       cancelButtonText: 'Cancel',
    //       type: 'warning'
    //     }).then(() => {
    //       store.dispatch('user/resetToken').then(() => {
    //         location.reload()
    //       })
    //     })
    //   }
    //   return Promise.reject(new Error(res.message || 'Error'))
    // } else {
    //
    // }
    return res
  },
  error => {
    console.log('err' + error) // for debug
    Message({
      message: error.message,
      type: 'error',
      duration: 5 * 1000
    })
    return Promise.reject(error)
  }
)
function http(config) {
  // config就是api传递的参数
  if (config.method.toLowerCase() === 'get') {
    // get类型 参数放哪?
    config.params = config.kv
  } else if (config.method.toLowerCase() === 'post') {
    // 设置数据默认提交格式 config 是从接口传递进来的参数默认没有headers 所以操作headers报错
    console.log('config', config)
    config.headers = {}
    config.headers['Content-Type'] = 'application/x-www-form-urlencoded'
    // 数据转换等需求...
    // 对象的序列化
    // https://www.npmjs.com/package/qs
    // 复杂对象: qs.stringify({ a: { b: { c: 'd', e: 'f' } } }, { allowDots: true }); 'a.b.c=d&a.b.e=f'
    // 数组: qs.stringify({ a: ['b', 'c'] }, { arrayFormat: 'repeat' })  'a=b&a=c'
    config.data = qs.stringify(config.kv, { allowDots: true, arrayFormat: 'repeat' })
  }
  // 重新进行回调的方式来进行操作
  return service(config)
}
export default http
